package com.jt.controller;


import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@CrossOrigin
public class PortController {
    //spring容器启动时，自动的加载application.yml文件
    //动态获取端口号
    @Value("${server.port}")
    private  Integer port;

    @GetMapping("/getPort")
    public  String getPort(){
        return  "当前服务器的端口号:"+port;
    }

}
